Please, do NOT force your toddler to hold the pencil the way a school child does, with 3 fingers on the pencil â you may do more harm than good. It is very hard to âunlearnâ a poor pencil grip later in life! Each stage of holding a pencil or crayon is dependent on how âsteadyâ the shoulder and arm muscles are.
In the equation of a straight line (when the equation is written as  y = mx + b ), the slope is the number  m  that is multiplied on the x, and  b  is the y-intercept, where the line crosses the y-axis.
Slope (ramp, inclined plane) problems are usually solved by rotating our frame of reference. In most problems we are dealing with a horizontal surface. Our normal frame of reference specifies vertical and horizontal directions using up or down, right or left for example. Consider a toboggan pulled along a virtually frictionless icy surface, by a rope at an angle upward.